arm64: dts: hi3660: Add property for fixing CPUIdle

During CPU low power modes, ETM components will lose their context.  Add
the "arm,coresight-loses-context-with-cpu" property to ETM nodes to save
and restore ETM context for CPU idle states.

Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>

Author: Leo-Yan

arch/arm64/boot/dts/hisilicon/hi3660-coresight.dtsi

@@ -17,6 +17,7 @@
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu0>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -34,6 +35,7 @@
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu1>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -51,6 +53,7 @@
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu2>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -68,6 +71,7 @@
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu3>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -160,6 +164,7 @@
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu4>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -177,6 +182,7 @@
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu5>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -194,6 +200,7 @@
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu6>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {
@@ -211,6 +218,7 @@
 			clocks = <&crg_ctrl HI3660_PCLK>;
 			clock-names = "apb_pclk";
 			cpu = <&cpu7>;
+			arm,coresight-loses-context-with-cpu;
 
 			out-ports {
 				port {